Patent US4600201A successfully refreshed from Google Patents.
Patent US3286121A successfully refreshed from Google Patents.
US3286121A
Expired / Lapsed
US
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Pick-up tube having a mesh electrode connected to the base by deflecting field neutralizing leads
Assignee: Electrical and Musical Industries Ltd
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Filing: 1963-01-10
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Granted: 1966-11-15
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Expires: 1983-01-10
Abstract
No abstract record available.
Inventors
- 👤 Lubszynski Hans Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:06
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/08; H01J31/00; H01J31/08; H01J31/26; H01J31/28; H01J31/34; H01J31/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
A PICKUP DEVICE COMPRISING AN EVACUATED ENVELOPE WITHIN WHICH ARE DISPOSED A TARGET, AN ELECTRON GUN, A MESH ELECTRODE CLOSE AND SUBSTANTIALLY PARALLEL TO SAID TARGET AND A WALL ANODE, BOTH SAID MESH ELECTRODE AND SAID WALL ANODE BEING PLACED BETWEEN SAID TARGET AND SAID GUN, THE DEVICE ALSO HAVING A PLURALITY OF CONTACT MEMBERS ATTACHED TO SAID ENVELOPE ADJACENT TO SAID GUN TO ENABLE CONNECTION TO ELECTRODES WITHIN SAID ENVELOPE, AND CONNECTING MEANS FROM SAID MESH ELECTRODE TO AT LEAST ONE OF SAID CONTACT MEMBERS, SAID CONNECTING MEANS INCLUDING ALONGSIDE SAID WALL ANODE AT LEAST ONE PAIR OF LEADS ALONG THE DEVICE AND DIAMETRICALLY OPPOSITE WITH RESPECT TO ITS AXIS.
References Cited (Backward Citations)
US2931931A
Cited
US3153171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |